Carbureter.



L. S. GARDNER.

GARBURETBR. I v 11111319. 190s, RBNBWBD AUG.12, 1911.

" Patented A111228, 1914 2 SHEETS-SHEET l'.

APPLICATION FILED J www? @fm/MW, www. @M

L. S. GARDNER. CARBURETBR. APPLmATIoN FILED JUNE 19, 1906. RBNBWBD AUG. 12, 1911.

\ 1,095,101. Y Patented Apr.28,1914.

2 SHEETS-SHEBT 2,

JJ' I LEVI S. GARDNER, OF NEW 'PATENT OFFICE.

ORLEANS, LOUISIANA, ASSIGNOR. T GARDNER CAR* LOUISIANA. j

CARBURETER.

Specification of Letters Patent.

ratenteanpr. 28, 19,14.-

Applicaton filed June 19, 1906, Serial No. 322,380. Renewed August 12, 19 1i.\ Serial No. 643,783.

, script-ion of the saine, such as will enable others skilled in the art to which it pertains to malte and use the same, reference being had to the accompanying drawings7 which t'orm a part ot' this specification.

My invention has for its object the production ot valve regulating mechanism for use vmore particularly in connect-ion with carbureters for explosive engines, but as will be seen when l have described the invention in detail, it can be used in many other forms of devices and ior many other purposes.

ln ,the `jn'esent construction of carbureters it is usual to provide the valve controlling the inlet of air with a-spring adjustable as to its tension, independent thereof a throttlc valve for admitting the mixture to the engine cylinder1 and independent otboth a needle valve controlling theiadmission of the gasolene. T he ditliculty with this form ot' carburetor is that when it is set with the proper tension on the spring controlling the air inlet for a partly closed throttle, that tension is not necessarily proper with a wide open throttle, This objection, together with others which are -to be found in the present construction ot carbureters, are overconie by my improved construction.

The objects of my invention are as follows: l. To provide a carbureter in which the valve contri-illii'ig the air inlet is positively moved. 9.-. To provide a earbureter in which the air inlet valve and the throttle are simultaneously moved to control 'the speed ot' the engine, 3. To provide a car bureter in which the vacuum space between the air inlet valve and the throttle can be easily varied by the adjustment of either the air inlet valve or the throttle valve or both. Ll. '.l`o provide a carburetor in which the oil or gasolene 'feed and the feed of air are so connected that as the oilvv or gasolene tred is iin-reased or decreased, the amount oi air ted will be correspondingly increased or decreased in the proper proportion. To provide a carhureter inwhich the air inlet valve and the throttle valve can be simultaneously operated to open and close them, and in which when they are once adjustedso that the vacuum space between them when once set to accommodate an engine running at low speed for'instance, will be properly increased in size or capacity so that as the speed of the engine is increased the proper mixture will still be fed to the cylinder. These various objects are attained by the embodimentof my invent-ion shown in the drawings herewith, which I will now proceed to explain in detail.

Figure l is a plan view ot' my structure with parts broken away on the line 1-1 of FiggQ. Fig. 2, is a vertical section on the line '2-9 of Fig. l. Fig. 3, is a view of the elevation looking in the direction of arrow 4 ot F ig. l.

In carrying out the invention, A represents what may be termed the main easing or body of the carbureter, provided with screw threads a whereby it may be attached to the intake pipe of the cylinder. It is provided on its lower end with screw threads a', by which it is engaged to a lower ing A and the extending fiange b and vertical wall b constituting the combustible fluid chamber B. The casing A is bored longitudinally as at B2 and projecting inwardly from the interior wall of the casing A is 'a flange o3.. Projecting inwardly from the interior wall of the casing B is a flange b2 which abuts the tiange a?. Extending through the [lange b2 are the fluid feed ducts C leading i'rom the chamber B up to the tace of the [iange b2.

D is the oil 'or gasolene inlet pipe controlled by the valve D carried by the valve stem D2, the latter being attached to a ioat D3 so that when the liuid in the chamber B reaches a proper height, the admission of the iiuid into the chamber B will be cut orf and the amo-unt thereot` in the chamber is thus regulated. Extending from the interior fall ot' the casing A are arms E carrying a bearing E in which a valve stem E2 slides. On this valve stem. is arvalve F. The stem E2 extends down to a point below the casing B where it is provided with a. projection e, the purpose of which will be later explained. Surrounding the stein E2 below under side of the structure. Fig. 4, is a sidel casing B, the extending flange i2 on the cas- J and pivotally grooves y', j, the pin e entering and traveling in the groove j While the pin g enters and travels in the groove j. The arm J is pivotally engaged to one end of this plate engaged to the other end of this plate J is arm K. Extending from the casing B is a fixed bearing M and a split bearing M', the latter being shown in Figs. 2 and 3. 0n

.the arm J is a stem J2 bored longitudinally to receive the stem K of the larm lll, the stein J 2 fitting the bearing M and revoluble therein. The upper end ot this stem J2 is interiorly screw-threaded as at y'z, 'and screwed therein is a nut J3.A Surrounding this nut J 3 is the nut J t, the upper end 'of which bears against the shoulder ja on the nut J 3. This nut J 4 is threaded exteriorly as at jt to lit the interior threads of the split bearing M. The upper end of the stem K is screwthreaded as at 7c to fit into the nut K2 and this latter nut ts in the upper end of the nut J 3, theV two being engaged or keyed together by the pin la to prevent the nut K2 from being Withdrawn from the nut J 3 and yet allowing it to revolve therein. The result of the structure just described is that by turning the nut l 2 the stem K the arm K Will be adjusted vertically with respect to the arm J This vertical adjustment of the arm K end ofthe plate J With respect to the oppo site end to Which the arm J is pivoted. On the end of the arm J is an eye J5, by means of which the arm J can be connected up With any suitable mechanism extending to thev operator. It will be observed that the vertical stem. J 2 of the arm J revolves in a horizontal direction in the nut J t and the bearing M and that when the arm J is thus swung horizontally it will carry With it the plate J so as to cause the diagonal grooves j, y" to act upon the pins e, g, and thereby move the stems E2 and the stem G vertically, thus carrying the valve F to and from its seat a", and the valve G to and from its seat b2. On the bottom of the casing B is a projecting lug N and located therein is a set screw N against the end of which the arm J abuts When it is swung to close the valves. By adjusting this set screw the movement of the arm J, and consequently the vertical movement of the valves in closing can be stopped at the predetermined point.

l Will now describe the operation of the evice, it being understood that the valve F is What is ordinarily termed the throttle mixture, give such a vacuum and consequently Will raise or lower the' `plate J.

wearer valve, that is it is the valve which governs the passage of the mixed air and oil or ga'solene vapor, or what is ordinarily termed 'y the explosive mixture. to the cylinder, While the valve G is the air admission valve, that is it controls the amount of air which is allowed to mix ivith the vapor to form the exe plosive mixture. The entire valve operating mechanism is, first adjusted vertically by screwing the nut J 4, thus lifting 'both the arm J and the arm K and consequently the plate J and this raises both the valves Fand the valve G. This initial adjustment of these valves is such as to give the minimum space between the valve G and its seat b2, when the engine is to run slowly, and this same Yadjustment leaves the valve F the proper distance above its seat to alloriT the minimum amount of the explosive mixture to passito the cylinder. When the valves are in the position shown in Fig. 2 for instance, there is between the valves F'and isuh a space as Will, Whenthe piston'otthe, engine cylinder is moved to draw in the explosive l as will draw the proper amount of combustible fluid out of the chamber B througl the passages C intothis space between` the valves, which I will term the mixing eharnber. Here it is mixed with the ajfr vrhich has passed the valve G and the mixture moved past the valve F and up intothe cylinder of the engine. The valvesare set initially as shownY in Fig. 2, for the engine at lovvspeed. Now

to adjust the device for the engine at high b10C speed, the operator "swings the arm J horizontally until the pins e,

g are opposite the point Where the arm K is pivoted to the This movement because of the diagonal or wedge sha-pe arrangementl of the grooves in the plate J", has thrown the valve'G down to its maximum position and the valve F up to its maximumy position.' The stem K is then adjusted vertically by means of the nut 'Kthus moving the arm` 110 K vertically and tilting the plate J until the groove y" assumes more of a horizontal position, and the groove y' assumes more of a vertical position, or vice versa asthe necessi* ties of the case may require, to the end that the proper vacuum may be attained in the space between the valves F and G to give a proper mixture for the engine at high speed. The valves have thus been adjusted so that a proper mixture is obtained for the engine both at low speed and at high speed. With the result that when the arm thereafter is swung horizontally by the operator the proper vertical movementis simultaneously given` to both the valves F and G to insure a proper mixture into the engine no matter at what speed it is run.

It will thus be seen that I have provided a carbureter which will accomplish all the objects set forth in the opening of lim ers, as a reduction valve, and in fact as a .controlling device for anyT this specification, and one which is come parativelysimple in construction, easy of adjustment and efficient in operation.

I would have it understood that while I have herein described my invention as applied to a carburetor for use in controlling the admission of an explosive fluid to an explosive engine, yet the invention is in reality of much broader scope. The devicecan be equally well applied as a regulator for gas engines, as a regulator for gas burnstructure where an adm ixture of air and a combustible fluid is desired. And I would have it understood that while I haveillustrated the device in connection with a caadeuieteLfor/an oil or gasolene explosive engine, yet I do not lWish to limit myself to' this use, but desireto be understood as contemplatingits use in any construction where la mixture of combustible fluid and air is desired! What I claim is: 'VN-gn 1. In a device of the character described,y the combination with a source of supply-"of combustible` fluid, of a chamber into which said fluid is admitted, a valve forming one Wall of said chamber and controlling the admission of air there-to, a valve forming another wall of the chamber and control.-y ling the exit of fluids therefrom, a sleevelike stem for one of said valves, a stem for the other valve extending through the first mentioned stem, cani devices for engaging said stems, and means for operating said cam devices.V

Q. ln a device of the character described, the combina-tion with a source of supply of combustible fluid, of a casing having achainber into which said fluid is admitted, said casing having also oppositely inclined walls extending laterally from the top and bottom of said chamber, a pair of valves l0- cated in said casing and formingthe topy and bottom of said chamber, and means for moving said valves'toward and from each other.

3. In a device of the character described,

vrespect to each other,

the combination of the ilolloiving elements, to wit: a casing forming a carbureting chamber,u one or more ducts or passages leading thereto from the source of supply of the combustible fluid, a valve for coutrolling the exit of the mixture from said l chamber, a valve controlling the admis-simi of air to said chamber, independent longii tudinally movable stems connected respectively to said valves, and cam 'devices connected with said stems for moving them positively in both the opening and closing directions.

4. ln a device of the character described, the combination of the following elements,- to wit: a casing forminga carbureting chamber, one or more ducts or passagesi leading thereto from the source of supply of the combustible fluid, a valve for controlling the exit of the mixture from said chamber, a valve controlling the admissioir of air to said chamber, independent longitudinally movable stems connected respectively to said valves, and two Wedge shaped devices for moving said stems positively in both the opening andlclosing directions.

5. In a de vice of the character described, the combination of the following elements, to wit: a casing forming a carbureting chamber, said casing being channeled so as toeonn'ect. the-source of supply of the comy bustible fluid to said mixing chamber at a plurality of points, a valvev for controlling the `exit of the mixture from said chamber,

a valve for controlling the admission ofair to said chamber, stems connected respectively to said valves, a plate having two surfaces inclined with one for each of said stems, and a device on each of the stems for engaging said surfaces whereby a movement of the plate operatesfto move the stems.

6. l-n a device of the character described, the'combination of the following elements, to wit: a casing constituting a carbureting chamber, an air inlet valve for said chamber.l a throttle valve controlling the exit of mixture from the chamber, each .lof said valves provided with stems, a plate having tivo surfaces inclined with respect to each other, one for engaging each off the stems, and means for tilting said plate'to vary the angle of inclination of each said surfaces, means on the stems for engaging the respective surfaces on the plate, and means for moving said plate bodily to operate the valves, whereby when the plate has been tilted to adjust the movement of the valves with reL spect to each other, the movement of the plate will operate the valves simultaneously.

. 7. In a device of the character described, the combination ofthe following elements, to Wit: the air inlet valve, the throttle valve controlling the exit of the mixture, each of said valves provided with stems, each stem provided with a projection, a curved plate having two inclined surfaces, one for each of sai-d projections, an arm engaged in said pl ate and adapted to swing the plate longil tndinally, and another arm carried by the lirst named arm pivoted to the plate and atlapted to tilt said plate transversely.

8. ln a devicefof the character described, the combination of the following elements to wit: the air inlet valve, the throttle valve ,controlling the exit of the mixture, each of said valves provided with stems, each stem provided with. a projection, 2zpcurved plate having two inclined surfacesionesfor each of said projections, vanarm engaged in said longitudinallv movable 1 tudinally, another army carried by the first named' arm pivoted to the plate and adapted to tilt said plate transversely, and an adjustable stop for limiting the movement of the first named arm.

9. In a device of the the combination of the to wit: a hollow easing projecting valve seat, a valve movable from and toward said seat, another projection below the first constituting a second valve seat, and a valve movable to and from said seat, the stem of the first named valve located within the stem of the second named valve, the second 'named valve seat having one or more passages leading from the source ot supply of the combustible fluid, the faces of said valve seats and the valves constituting a mixing or Vacuum chamber, a curved plate having two diagonal orwedge shaped surfaces, each et said surfaces engaging one ot the said valve stems, means for moving the plate to vary the angle of inclination of said surfaces, means for moving the plate to operate said stems, and thereby operate the valves.

l0. In a device of the character described, the combination of the following elements, to Wit: a hollow easing having an inwardly projecting valve seat, a valve movable from and toward said seat, another projection below the lirst, constituting a second valve seat, a valve movable to and from said seat,` each of said valves provided with aA vertical character described, following elements,

having an inwardly movable stem, the second named valve 'seat having openings at a plurality of points connected with rthe source of supply of the combustible iiuid, the faces of said valve seats and the valves constituting` a mixingl chamber, a curved plate having two diagonal or wedge shaped grooves, each of said grooves engaging one of said valve stems by means of the projections, a'horizontal swinging arm pivoted to said plate and adapted to move it in a horizontal direction, and another arm carried by the first named arm, pivoted to said plate and adapted to tilt the plate to vary the angle of inclination of the grooves.

11. ,In a device of the character described, the combination with a source of supply ol? a combustible fluid, a casing having interior oppositely inclined walls, said casing also having an opening connecting the source of fiuid supply to the interior of the casing between the adjacent ends of said walls, a pair of valves arranged within said casing on opposite sides of said opening and having their edges extending into proximity to said walls, and means for shifting said valves so as to vary the spaces between the, edges thereof' and the adjacent walls.

In testimony whereof, I sign this specification in the presence of two witnesses.b

HARRY S. Garrnna, RUBY NASH. 

